25/100 as a Decimal 0.25 25/100 = 0.25 = 25% Copy 25/100 = 0.25 = 25%. Simplified: 1/4. Formula Used25 ÷ 100 = 0.25 Frequently Asked Questions What is 25/100 as a decimal?0.25.What is 25/100 as a percentage?25%.